What about Russia trying to kill Yanukovich's opponent (who after the failed poisoning even failed to win, despite confirmed election fraud)? The same Yanukovic

What about Russia trying to kill Yanukovich's opponent (who after the failed poisoning even failed to win, despite confirmed election fraud)? The same Yanukovich that promoted European integration during the 2013-2014 campaign and then reneged on his promises once elected, thus prompting Euromaidan—it was all his doing, no need to involve US and Europe in the supposed "coup".